I can recommend the Cygolite headlights with the screw mounts. It is very easy to mount them good and tight so they keep their position. There are two flashing modes. I like the "steady flash" mode which illuminates constantly at medium intensity and flashes every second on high.

For side visibility, you can do what I do. I use a Nite Ize Spokelit which mounts in the wheel. It runs on two coin batteries which last several months. It's not super bright, but because of the motion, it's a huge attention grabber. I've received compliments from it.

Instead of trying to find some kind of amber side lights for my bike, I bought some lights for the wheels which I turn on during the dark. They're all over Amazon. I feel it gives me better side visibility with having two large colorful rings of light spinning around than by putting a couple of small amber lights on the front or something. Plus I have reflective tape placed at strategic locations on the side of my frame & forks, white in the front, red at the rear, to augment the wheel lights.

The wheel lights contain a single bright LED and operate on one CR2032 battery. I use two per wheel. The pack I bought contained one red, one green, one blue, and two multicolor LED's. I put the green and a multicolor on the front wheel, and the red and a multicolor on the rear wheel. I have the blue in reserve in case I lose one of the others.

L & M has a great set of side lights built right in to their 'Urban' line. Unfortunately, they all have rubber band mounts and their basic "flashlight design" will blind (and anger) on-coming traffic. The one I own, now discontinued, DOES NOT have daytime flash mode...

You still have to charge it, though. My favorite lights are my dynamo powered lights. I don't even turn them on or off. I just ride.

But someone had to pay for them and put them on your bike. I'd rather recharge a light that puts out enough light to allow me to see safely than settle for a dim light that's easy to use and expensive.

I mounted Planet Bike flashers on the waist band of a cycling reflecting vest. I place them at the forward "corner" of my pelvis - to be seen by cars pulling out of driveways and side streets and left-turning on-coming traffic. It is very clear that drivers see those lights. I rode home once rather tentatively because I had forgotten to put my headlight on. Drivers were waiting what seemed forever for me to pull through intersections that I was yielding, figuring I wasn't seen.